204226138031 has 2 divisors, whose sum is σ = 204226138032. Its totient is φ = 204226138030.

The previous prime is 204226138003. The next prime is 204226138177. The reversal of 204226138031 is 130831622402.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204226138031 is a prime.

It is a super-2 number, since 2×204226138031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204226138331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102113069015 + 102113069016.

It is an arithmetic number, because the mean of its divisors is an integer number (102113069016).

Almost surely, 2^204226138031 is an apocalyptic number.

204226138031 is a deficient number, since it is larger than the sum of its proper divisors (1).

204226138031 is an equidigital number, since it uses as much as digits as its factorization.

204226138031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 204226138031 in words is "two hundred four billion, two hundred twenty-six million, one hundred thirty-eight thousand, thirty-one".